IV D e v e l o p e d B y - S a r o j J u n g h a r e Page 2 1.2. Raster Image Formats There are two main kinds of graphics: raster graphics and vector graphics. Raster (or bitmap) enlarged without any loss of quality and is therefore useful in visual designs. Common raster image formats are listed below: Extension Name Properties BMP Windows Bitmap Accepted in most image Tagged Image File Format Store one or multiple images in the same file. Have an extensive set of options (which are outside the scope of this book). RAW, CR2, etc… Raw image formats. (They are

(limited only by disk space) • Transformation tools including rotate, scale, shear and flip • File formats supported include GIF, JPEG, PNG, XPM, TIFF, TGA, MPEG, PS, PDF, PCX, GNU Image Manipulation ellipse, free, fuzzy, bezier and intelligent • Plug-ins that allow for the easy addition of new file formats and new effect filters GNU Image Manipulation Program Generated by docbook2odf Page 5 of 421 GtkUIManager to generate menu structure dynamically from XML data files. • A completely revamped File Chooser is used everywhere in the GIMP for opening or saving files. The best thing about it is that

Handbook by Olof and Karin Kylander. p. cm. ISBN 1-57610-520-2 1. Computer graphics. 2. GIMP (computer file) I. Kylander, Karin. II. Title. T385.K866 1999 006.6'869--dc21 99-38515 CIP Printed in the United III Basic Functions Chapter 6: Files And Preferences .................................. 75 The File Menu 76 Creating Images 77 Guash 77 Opening Files 79 Saving Images 81 Save Perl Gimp Users”) • Mike Terry (Author of “Black Belt School Of Script-Fu”) • John Sigerson (PDF file format of GUM version 0.5 to 0.9) • Aristidi Yannick (French translation) • Yasuhiro Shirasaki (Leader

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 5.3.1 Open File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 5.3.4 File Browser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Size/Quality Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 6.2.2 Reducing the File Size Even More . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 6.2.3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 5.3.1 Open File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 iii CONTENTS Using External Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 5.3.5 File Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 5.3.6 Export Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 6.1.2 File Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 6.2 Preparing

transform images with rotation, scaling, flipping, and shearing. The GIMP supports many common file formats: TIFF, GIF, JPEG, BMP, PPM, etc. Selections can be performed with rectangle, ellipse, and freehand code for many platforms from the GIMP's home page (see http://www.XCF. Berkeley.EDU/~gimp/). The file will appear something like "gimp-0.54-linux-ELF-bin. tar.gz" and will be quite large. You will want "gimp" directory. You'll see README files and a file called "gimprc". You should execute "cp gimprc ~/.gimprc" to make a copy of your own gimp configuration file. You'll need to edit ~/.gimprc to add the path

Images • To open an image for editing: – Drag file onto a new GIMP window or – File > Open or (Ctrl + O) • After opening, save a working copy of the file • GIMP saves files as XCF files by default, but you can export files in other formats (e.g. PNG) Straightening Images • Drag a horizontal guide line onto your image (from top ruler) to intersect an area that should be perfectly horizontal Guides Cropping Images • Useful to crop unnecessary edges away • Can reduce file size when bringing images into a vector file • Use the ‘Rectangle Select’ tool (R) to draw a box around the area

name Ctrl E Export Shift Ctrl E Export As...: export image to various file formats Ctrl P Print... Ctrl Alt F Show the image in file manager Ctrl W Close Window Shift Ctrl W Close All Ctrl Q 退出 编辑

 Adjust color (brighten or darken) Basic photo editing in GIMP Open your image file in GIMP 1. File 2. Open 3. Find your image based on where it is saved on your computer Set up Single Finished editing? Export your image as a common file type If you click on Save, GIMP will save your edited file as a file type that only works in GIMP (.xcf file). To share your photos with others or a more common file type. 1. File 2. Export As… You can change the size of your healing tool (the brush) here Before After 5 3. Name your file 4. Choose

and move an object and how to save an image. Opening an image 1. We open an image by clicking on File-->Open in Panel 1 (Tool Box panel). 2. The image appears in Panel 2, the workspace (you can think and information pertaining to the object you are working on). 3. Here you can see the layers in the file. In this case I pasted this image into the GIMP GIMP Basics - 1 Cropping an image The cropping an image, select File-->Save as from the main work area where the image is shown. Save the image we scaled as a JPEG Here is the scaled picture being saved as a JPEG 1. Name the file 2. Location (in